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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-06-27 20:56:41 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-06-27 20:56:41 +0300 |
commit | b19edac5992da0188be98454ca592621d3d89844 (patch) | |
tree | 57ebeb5f3583c172e6d4aa64a33841086e7cc5db /tools/include/nolibc/unistd.h | |
parent | af96134dc8562f9fcbb8358af36f6086619a29ab (diff) | |
parent | dd58d666ac08eb5eb81e4956172fc52b3bf0ab38 (diff) | |
download | linux-b19edac5992da0188be98454ca592621d3d89844.tar.xz |
Merge tag 'nolibc.2023.06.22a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull nolibc updates from Paul McKenney:
- Add stackprotector support
- Fix RISC-V load-store instruction syntax to support 32-bit binaries,
plus fixes for generic 32-bit support
- Fix use of s390 sys_fork()
- Add my_syscall6() for ARM
- Support different platforms having different errno definitions
- Fix ppoll/ppoll_time64 arguments (add the fifth argument)
- Force use of little endian on MIPS
- Improved testing, for example, better handling of different compilers
and compiler versions, comparing nolibc behavior to that of libc, and
additional test cases
- Improve syntax and header ordering
- Use existing <linux/reboot.h> instead of redefining constants
- Add syscall()
* tag 'nolibc.2023.06.22a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (53 commits)
selftests/nolibc: make sure gcc always use little endian on MIPS
selftests/nolibc: also count skipped and failed tests in output
selftests/nolibc: add new gettimeofday test cases
selftests/nolibc: remove gettimeofday_bad1/2 completely
selftests/nolibc: support two errnos with EXPECT_SYSER2()
tools/nolibc: open: fix up compile warning for arm
tools/nolibc: arm: add missing my_syscall6
selftests/nolibc: use INT_MAX instead of __INT_MAX__
selftests/nolibc: not include limits.h for nolibc
selftests/nolibc: fix up compile warning with glibc on x86_64
selftests/nolibc: allow specify extra arguments for qemu
selftests/nolibc: remove test gettimeofday_null
tools/nolibc: ensure fast64 integer types have 64 bits
selftests/nolibc: test_fork: fix up duplicated print
tools/nolibc: ppoll/ppoll_time64: add a missing argument
selftests/nolibc: remove the duplicated gettimeofday_bad2
selftests/nolibc: print name instead of number for EOVERFLOW
tools/nolibc: support nanoseconds in stat()
selftests/nolibc: prevent coredumps during test execution
tools/nolibc: add support for prctl()
...
Diffstat (limited to 'tools/include/nolibc/unistd.h')
-rw-r--r-- | tools/include/nolibc/unistd.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/include/nolibc/unistd.h b/tools/include/nolibc/unistd.h index ac7d53d986cd..0e832e10a0b2 100644 --- a/tools/include/nolibc/unistd.h +++ b/tools/include/nolibc/unistd.h @@ -56,6 +56,21 @@ int tcsetpgrp(int fd, pid_t pid) return ioctl(fd, TIOCSPGRP, &pid); } +#define _syscall(N, ...) \ +({ \ + long _ret = my_syscall##N(__VA_ARGS__); \ + if (_ret < 0) { \ + SET_ERRNO(-_ret); \ + _ret = -1; \ + } \ + _ret; \ +}) + +#define _syscall_narg(...) __syscall_narg(__VA_ARGS__, 6, 5, 4, 3, 2, 1, 0) +#define __syscall_narg(_0, _1, _2, _3, _4, _5, _6, N, ...) N +#define _syscall_n(N, ...) _syscall(N, __VA_ARGS__) +#define syscall(...) _syscall_n(_syscall_narg(__VA_ARGS__), ##__VA_ARGS__) + /* make sure to include all global symbols */ #include "nolibc.h" |